Accurately hit testing fast projectiles (compatibility option)
A bug in the original Doom, projectiles sometimes travel through walls.
Doomsday specific, projectiles sometimes fail to activate XG scripts that can be activated through being hit by projectile.
Both seem more common with fast projectiles than slow ones.
#4 Updated by skyjake over 6 years ago
- Tracker changed from Bug to Feature
- Subject changed from Projectiles sometimes travel through walls to Accurately hit testing fast projectiles
- Category changed from Defect to Vanilla emulation
- Priority changed from Normal to Low
Then we can at most add a compatibility option for enabling or disabling more accurate hit testing for fast-moving objects. Converting to a Feature.
#5 Updated by vermil over 6 years ago
What spurred me on these issues was that I made a couple of mods/reimages of other games in the past, that I didn't quite complete or release. I've still got the files and have tweaked them from time to time.
One, a Doom mod, featured XG doors that could be blown up with rockets; the rockets were always exploding on the door, but it wasn't activating the XG line unless I struck the doors from certain angles.
In the other Heretic mod, I had a bunch of small projectiles with a speed of 15, but they regularly kept going through walls; though they always exploded on the backs of 1 sided linedefs they hit after. The strange thing is that 15 is not a high speed; various missiles in Doom are that fast, so maybe it was the size or something of my projectiles. They had a radius and height of 4.